1 Answer
1

The power failure can cause some mysql tables to be marked as corrupted and should be checked. Before that, you will not be able to query such tables. I remember I faced a similar problem of corrupted tables. Most likely, the tables with ongoing updates will suffer from such an error.

I suggest that you restart mysql with the option --skip-grant-tables to be able to login. Then, you can check the tables under mysql database. Also, you can change any user password.